Property enhancement of cast iron used for nuclear casks

Behera, R K; Mahto, Bishnu Prasad; Dubey, J.S.; Mishra, Subhash C.; Sen, Sudipta

doi:10.1007/s12613-016-1209-0

Cited by 5 publications

(3 citation statements)

References 33 publications

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“…4(f)] for alloy SG-9 indicating the brittle mode of failure, but at 500X, [ Fig. 4(g)] shallow dimples were observed around the graphite nodules suggesting a mixed mode of failure [19,20]. Similar kind of phenomenon was also observed for alloy SG-2 at quench & tempered heat treated condition, i.e., at magnification 250X, [ Fig.…”

Section: Mechanical Propertiesmentioning

confidence: 65%

Suitability of SG Iron to Be Used As Nuclear Fuel Transport Cask

Behera¹,

Mishra²,

Sen³

et al. 2016

3rd Annual International Conference on Materials Science, Metal and Manufacturing ( M3 2016 )

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Morphological aspects such as volume fraction of various phases, nodularity, and nodule count are responsible for mechanical properties of Spheroidal graphite cast iron (SG Iron)/ Ductile iron (DI). In present work, DI specimens were subjected to different heat treatment processes to correlate the mechanical properties with microconstituents, to be used for spent nuclear fuel cask fabrication. The investigation revealed higher strength for tempered martensitic specimens with a considerable amount of ductility. Increased Si & Cr content resulted increasing in ferrite volume fraction consequently leading to increased ductility and impact toughness, whereas increased pearlite volume fraction resulted in increased hardness.

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Section: Mechanical Propertiesmentioning

confidence: 65%

Suitability of SG Iron to Be Used As Nuclear Fuel Transport Cask

Behera¹,

Mishra²,

Sen³

et al. 2016

3rd Annual International Conference on Materials Science, Metal and Manufacturing ( M3 2016 )

Self Cite

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“…Ductile cast irons (DCIs) are widely used in several applications in virtue of their properties of castability, cast dimension stability, and high ductility [1]. For ferritic grades, ductility up to 25% can be reached mainly thanks to the spheroidal shape of the graphite nuclei [2].…”

Section: Introductionmentioning

confidence: 99%

Strain rate effects on fracture behavior of austempered ductile irons

Ruggiero

Bonora

Gentile

et al. 2018

AIP Conference Proceedings

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In this work, the mechanical behavior of the austempered ductile iron (ADI) JS/1050-6 was investigated, with particular attention to the strain rate effects on the material ductility. Tensile tests at different strain rates (up to 10 3 s −1) and temperatures (ranging from 213 to 343 K) were performed. Samples with different geometries, smooth and round notched bars, were used to evaluate the effect of the stress triaxiality level on the strain at fracture. For each configuration, the evolution paths of stress and strain were extracted in the point where failure is expected performing numerical analyses at the continuum scale. Stress histories were used as input in a micromechanics analysis aimed to analyze the heterogeneous state of stress, determined by the presence of the graphite nuclei, under the different loading conditions obtained in the experiments. The main result is that, under dynamic conditions, the stress field redistribution, due to the adiabatic condition, postpones the failure occurrence, regardless temperature and strain rate effects on the matrix ductility.

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“…Nevertheless, it has to be ensured that bond coatings are typically thinner than main coatings. 14,15 Further, the implications on including carbon nano tubes in feed powders have not been reported in detail which demands an intensive study owing to the favourable features it would impart to the coating materials due to its favourable mechanical and chemical properties.…”

Section: Introductionmentioning

confidence: 99%

INFLUENCE OF CARBON NANOTUBE REINFORCED TiO2- Al2O3 COATING MIXTURE ON AISI 1020 SURFACE PERFORMANCE

2017

Rasayan J Chem

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Evolution and extensive research on nano technology has yielded several positive facets in the surface engineering which alters the mechanical properties and metallurgical behaviour of substrates as desired by designs specified for critical applications. In this work, plasma spray coating on mild steel using the nanocomposite material of Al2O3 with 13%TiO2 & 1%CNT is carried out to examine the mechanical and metallographic behaviours. The Nano composite material is coated on AISI 1020 substrate using a plasma spray technique. ASTM C-633 standards are followed while performing destructive testing to examine the strength of the bonding. The Nano-structured coat layer exhibit greater resistance to crack growth, higher bonding strength and hardness. The higher strength and toughness obtained is attributed to the formation of net structures. Further, the samples are investigated by using Xray diffraction technique and microscopic techniques. Al2O3 phase shows dominance. Metallographic studies revealed that coating on the substrate illustrates various regions, including the ceramic layer (Al2O3 or Al2O3-13 weight% TiO2) and the matrix, that show little variance due to the coating. Negligible or insignificant amount of spalling or delamination is observed in the coatings. Nevertheless, there is negligible number of visible pinholes in the coatings. Response surface methodology is employed to examine the performance measures and parametric dependencies.

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Property enhancement of cast iron used for nuclear casks

Cited by 5 publications

References 33 publications

Suitability of SG Iron to Be Used As Nuclear Fuel Transport Cask

Suitability of SG Iron to Be Used As Nuclear Fuel Transport Cask

Strain rate effects on fracture behavior of austempered ductile irons

INFLUENCE OF CARBON NANOTUBE REINFORCED TiO2- Al2O3 COATING MIXTURE ON AISI 1020 SURFACE PERFORMANCE

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